Format string vulnerability in super for Linux allows local users to gain root privileges via a long command line argument.
http://www.securityfocus.com/bid/5367
http://www.iss.net/security_center/static/9741.php
http://www.debian.org/security/2002/dsa-139
http://marc.info/?l=bugtraq&m=102812622416695&w=2
http://archives.neohapsis.com/archives/vulnwatch/2002-q3/0045.html